Forging machine



Jan. 1925- 1,523,356

F. A. HALLECK FORGING MACHINE Filed July 10, 1917 2 Sheets-Sheet 1 4* 7 6 5 @lfid 2 4/ W Franirl Z c Z Jy/Aa J 21%;.

Jan. 13, 19125.

F. A. HALLECK FORGING MACHINE Filed July 10, 1917 2 Sheets-Sheet 2 Patented Jan. 13, 1925..

FRANK A. HALLECK, OF OAK PARK. ILLINOIS, ASSIGNOR TO SULLIVAN MACHINERY COMPANY,

A CORPORATION OF MASSACHUSETTS.

FOBGING MACHINE.

Application filed July 10, 1917.

To all QUIIOWL it may concern:

Be it known that I, FRANK A. I'IALLECK, a citizen of the United States, residing at Oak Park, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Forging Machines,

of which. the following is a full, clear, and exact specification.

My invention relates to forging machines.

It has for its object to provide improved means whereby the diagonal steels used in a channeling machine, which have heretofore been formed and sharpened entirely by hand, may be manufactured or sharpened in a forging machine, the operation being facilitated and the cost of the same being reduced at the same time that it is possible to produce steels of greater uniformity and durability in a far shorter time. More specifically, my invention has for its object to provide improved mechanism whereby channeler steels may be swaged, gaged, and provided with cutting edges, in an improved and simplified manner in a forging machine of the hammer type.

In the accompanying drawings I have shown, for purposes of illustration, one embodiment whichmy invention may assume in practice.

In these drawings,

Fig. 1 is a partial longitudinal sectional view of a drill sharpener equipped with my improvement.

Fig. 2 is an end elevation of the swaging and gaging dies when in closed position, a steel being shown in section therein.

Fig. 3 is a vertical sectional view on line 33 of Fig. 2.

Fig. 4 is a verticalsectional view on line 44 of Fig. 2.

Fig. 5 is an end elevation of the front end of the clamping dies when in closed position. i

Fig. 6 is a longitudinal sectional view showing the clamping dies and a cooperating dolly.

Fig. 7 is a perspective view of a dolly adapted to operate upon right hand steels.

Fig. 8 is an end elevation of a dolly adapted to operate upon left hand steels.

Fig. 9 is a perspective view of the swaging and gaging dies, the upper die being shown at an angle to facilitate illustration. b Fig. 10 is a perspective view of a finished Serial No. 179,771.

Fig. 11 is a side elevation showing the finished bit incorporated in the gang.

In this illustrative construction, I have shown my invention as applied to a machine of a well known type including a frame 1 carrying a stationary clamping die 2 and a movable clamping die 3 reciprocable with a crosshead 4. through the operation of suitable power operated toggle mechanism 5 to clamp the steel between the dies 2 and 3 in position to be operated upon by a power operated upsetting dolly 6. Cooperating with this mechanism is suitable swaging mechanism including dies 7 and 8, of which the die 8 is reciprocable power means, these dies being carried preferably on the same frame 1 and adjacent the clamping dies, the same herein being shown disposed in front of the latter.

In my improvement, the rectangular stock from which channeler steels are formed is first worked between the swaging dies 7 and 8 shown in Figs. 2, 3, 4, and 9. e will accordingly first describe these dies and of the same first consider the die 7 This die, it will be noted, is provided at its front end with a plurality of flat intersecting sur faces 9 and 10 cooperating to form a notch in which the shank of the rectangular steel is adapted to rest. Disposed in rear of these surfaces 9 and 10 is also an enlarged, fiat, transversely disposed, inclined surface 11 sloping downward from a point adjacent the upper flat surface 12 of the die to a point beneath the line of intersection of the surfaces 9 and 10. As shown, a suitable opening 13 is provided at the side of the die so that any scale dropping on the surface 11 may find its way out. Disposed adjacent this surface 11 and preferably at one side of the die, is a cutaway portion provided with a plurality of flat sides 14: and 15, preferably of substantially equal length and intersecting at right angles on the line 16 to form a longitudinally disposed groove, the surfaces l t and 15 also being preferably sloped toward the rear, as shown in Fig. 9. The subject matter constituting the surfaces 14 and 15 form the subject matter per se for my copending divisional application, Ser. No. 755,716, filed Dec. 13, 1924. As in the previous instance, a suitable cut-out or slotted portion 17 may be provided between the surface 11 and the groove formed by the surfaces 14 and 15 in order to enable by any suitable scale to escape from the die. As shown in Fig. 9, it will be noted that the die 8 is substantially identical with the die 7, with the exception that, in lieu of the surfaces 9 and 10, the same is provided with a rounded notch or opening 18 therein to permit right and left hand steels to be formed in the dies by simply placing the tlatsurface of the steel against the surface 9 or against the surface 10, as desired. '(Fig. 2.)

In the use of my invention, when manufacturing steels from stock of the usual rectangular cross section, as for instance that shown at 19 in Fig. 10, the end of the stock is placed upon the surface 11,0ne side of the same resting against either the surface 9 or 10, depending upon whether it is desired to form a right or left hand steel. Then by reciprocation of the upper die 8 the portion of the steel resting on the surface 11 is flattened, as shown at 20 in Fig. 10, to form the desired diagonal. After this flattening process, the steel is next placed in the gaging die, i. e. the grooves formed by the cooperating surfaces 14 and 15, with its flattened portion disposed upright so that it may be acted upon by the surfaces lat and 15 and be brought down to gage, at the same time that the desired square corners formed by the operating surfaces 21 shown in Fig. are formed upon it. The steel is then ready to be operated upon by the cutting edge forming mechanism.

Y This mechanism includes the clamping dies 2 and 3 and the dolly 6. As shown in Fig. 5-, the clamping die 2 is provided with a shank receiving portion comprising a'plurality of inclined downwardly converging walls 22 and 23 intersecting on the line 2% at a point slightly at one side of the center line of the die and extending longitudinally and rearwardly thereof into communication with a flared mouth 25 of semi-conical shape. As shown, the die 3 is substantially identical with the die 2, the surfaces 22- and 23 thereof in this instance, however, being so disposed that they intersect on the line 24 lo cated at the opposite side of the center line of the die. Thus, it will be noted that when a steel is clamped within the clamping dies its cutting end comprising the flattened surfaces is disposed slightly diagonally, and that through the provision of the conical V mouth 25 and the angularly disposed clamping surfaces 22, 23, either a right or left hand steel may be clamped in position. Co-

operating with these clamping dies and acting to form a cutting edge upon a-steel clamped between the same is the reciprocating dolly ()"provided with sloping slightly angularly disposed working surfaces 26 and 27 intersecting on a line 28 and adapted to form the cooperating surfaces 29 and 30 which cooperate to form the working or cutting edge 31 on an angularly disposed tool.

after the same has been flattened and gaged in the swaging dies as described above, the same is next clamped between the dies 2 and 3 so that it may be operated uponlby the dolly 6, the latter then being set in motion to form the surfaces 29 and 30 (shown in Fig. 10) which cooperate toform the cutting edge 31, either the right hand or left hand dolly being employed, as needed. After this cutting edge has thus been formed, the cycle of operations above qindicated, including the flattening, gaging, and edge forming processes, may be repeated in whole or in part as oftenas desired in order to bring the bit into the proper shape and gage, the bit, ifnecessary. being reheatedat any time in order to facilitate the forming process. Thus, it

will be noted that the entire bit is formed by the forging machine and without thenecessiiy for any hand work on the part of the operator, and in materially less time than it is possible to make the same by hand. For instance. in actual practice it has been found that a bit may be drawn out from new steel toan angle of about twenty two degrees and finished to the proper gage in about four minutes, whereas in sharpening by hand ten or fifteen minutes are required to form, a single bit. Further, it has been found that the bits formed in my improved mechanism possess a most-decided advantage over the hand formed bits in their uniformity, the machine being capable of producing bits in any quantity with great accuracy and without the variations in accuracy which must necessarily follow from variations in the work of even askilled' operator, or-the variations in the work of a group of operators possessing skill in different degrees. It has also been found that due to the' continued hammering aetionobta'inable by the use of my improved mechanism, the amount "of sharpening which is necessary is materially reduced. it being possible insome instances to usethe steel three timesas long as was possible'with hand sharpened tools. Afurther advantage of my improved mechanism is that by the use of thesame the breakage of steels'in service has also been materially reduced. a decrease in breakage of even as much asfifty per cent having been obtained a result of the substitution of my 1111-- proved machine sharpening mechanismfdr handv sharpening. These and other advantages of my improved construction will, however, be clearly apparent to those skilled in the art.

lVhile I have in this application specifically described one embodiment which my invention may assume in practice, it is to be understood that the same is shown herein for purposes of illustration and that the invention may be modified and embodied in vari ous other forms without departing from its spirit, it being my intention to include all such modifications within the scope of the appended claims.

lVhat I claim as new and desire to secure by Letters Patent is:

1. In a forgoing machine, a member having a work piece supporting surface and dies arranged in alinement therewith and having cooperating work forming surfaces forming a dihedral angle whose edge is disposed at an angle to the plane of said supporting surface.

In a forgoing machine, a member having a work piece supporting surface, dies arranged in alinement therewith and having cooperating work forming surfaces forming a dihedral angle whose edge is disposed at an angle to the plane of said supporting surface, and means forming passages leading from one of said forming surfaces.

3. In a forging machine, a member having a work piece supporting surface, dies arranged in alinement therewith and having cooperating work forming surfaces forming a dihedral angle whose edge is disposed at an angle to the plane of said supporting surface, and means forming laterally extending passages leading from both of said forming surfaces.

4:. In a forging machine, a member having a work piece supporting surface, dies arranged in alinement therewith and having cooperating work forming surfaces forming a dihedral angle whose edge is disposed at an angle to the plane of said supporting surface, another work forming surface disposed adjacent one of said other work forming surfaces, and a passage connecting the same to allow material to be discharged from said first mentioned surface to the second one, said second passage being utilized to finally discharge material from the first set of surfaces.

5. In a forging machine, a member having a work piece supporting surface, dies arranged in alinement therewith and having cooperating work forming surfaces forming a dihedral angle whose edge is disposed at an angle to the plane of said supporting surface, other cooperating work forming surfaces disposed adjacent said first mentioned work forming surfaces and comprising plane intersecting surfaces adapted to discharge material, and means forming a passage communicating with each of said sets of work forn'iing surfaces to allow final discharge of material from one of said sets of surfaces by way of said passage to the other of said set of surfaces.

6. In a forging machine, dies having inclined faces arranged to form a dihedral angle, and means for supporting a work piece in working relation to said dies com prising surfaces arranged at an angle to the plane bisecting said dihedral. angle.

7. In a forging machine for forging diagonal channeler steels, dies having cooperating inclined working faces arranged at an angle to each other, and means for supporting a work piece during its working by said dies comprising a plurality of alternately usable work supporting surfaces disposed at an angle to each other, the edge of said angle being parallel to a plane bisecting the angle formed by said working faces.

8. In a forging machine adapted to form diagonals on steels having parallel plane faces, a pair of dies having inclined faces arranged at a dihedral angle and relatively movable one to the other, one of said dies having a plurality of angularly disposed plane work-piece supporting surfaces upon which said plane surfaces of the work piece may be supported during working, said supporting surfaces together with a plane pass ing through the edge of said dihedral angle bounding an isosceles prism.

9. A mechanism for forging diagonal channeler steels comprising a plurality of dies adapted to receive a steel between them and having inclined working faces to form diagonal faces on the steel, and a steel receiving aperture adapted to receive the blanks for right and left hand steels and to support them in position to be worked by said dies.

10. A mechanism for forging diagonal channeler steels having a plurality of dies adapted to receive a steel between them and having diagonal forming faces thereon, one of said dies being movable relative to the other, and the other having means for sup porting either a right hand or a left hand steel while the latter is being acted on by said faces.

11. In a forging machine. swaging dies provided with cooperating diagonal forming surfaces disposed at an angle relative to one another, one of said dies also having a plurality of intersecting shank supporting surfaces.

12. In a forging machine, swaging dies having cooperating transversely disposed inclined flat surfaces, one of said dies being provided with a plurality of inclined intersecting surfaces at its front end and the other being provided with an enlarged notchlike opening overlying said surfaces.

13. In a forging machine, cutting edge forming mechanism for diagonal channeler steels'including clamping dies cooperating to form a shank clamping recess of rectangular cross section having its upper andlower cor ners disposed on opposite sides of the center line of the dies, and an enlargedrecess of conical forin' connnunicating with said Work clamping recess.

lahIn forging machine cutting edge forming mechanism for diagonal channeler steels including clamping dies cooperating to form a shank clamping recess of rectangular cross section having its upper and lower corners disposed on opposite sides of the center line ofthe dies, an enlarged recess of conical forin communicating with said work'c1a1nping recess, and adolly movable into said conical recess'and having edgeforniing surfaces on its front end.

15. In a forging machine, cutting edge forming mechanism for diagonal channeler steels including clamping dies cooperating to form a shank clamping recess of rectangular cross section having its upper and lower cornersdisposed on opposite sides of the center line of the dies, an enlarged recess of conical form communicating with said Work clamping recess,, and a dolly movable into said conical recess and having edge-forming surfaces on its front end disposed suhstantially horizontally.

In testimony whereof I affix my signature.

FRANK AJHALLEGK. 

